On what seemed like a normal day on Olympus, the gods suddenly received a note. There were going to be 13 heroes summoned to olympus from the future. And they had to guess which gods were their parents.

Gods and demigods read the PJO books.

Percy and the others get sent back in time to read the books of himself with the gods of Olympus and Hades.

Basically Umbridge Reads the Deathly Hallows to Hogwarts, The Order, and Fudge. Includes Umbridge and Fudge making fools of themselves, The Order being revealed and the fate of the of the wizarding world is shown.

I know that this has been done a thousand times before, but this is my take on a "Harry Potter characters read the books" so I hope you like it :)

What happens when the 7 and a few other select few go back in time to visit the gods? Oh, just remember, this isn't your normal visit...

IMAGINE: The seven are the unpopular, mysterious kids at CHB. One day, the populars decide to bully them- their mistake. Now they're stuck watching the seven's pasts! How will this end?

Annabeth and Percy after the battle with Gea are sent to the past camp after the battle at the labyrinth.They read with the camp House of Hades.

The Fates feel like the gods and demigods need to know what Percy and Annabeth went through in Tartarus, so they send the demigods and a book called The House of Hades back in time to read with the past gods.